The SI prefixes above are not the only extreme ones. Others such as xenno (x) (10⁻²⁷) and xenna (X) (10²⁷), or vendeko (v) (10⁻³³) and vendeka (V) (10³³) exist, and can help simplify the expression of extreme numbers.
Source: wiktionary
Xenno-
Synonyms for "xenno-" (1 found)
Ranked by relevance and common usage.
Closest matches (1)
Prefix(1 words)
Sample sentences
3 total sentences available.
'Now we're talking xennobiology!' [...] a complex organism based on similar processes to the primitive ones they'd seen probably would be about a xennometre in size.
Source: wiktionary
From Nanotech to Xennotech [...] A one-kilogram hole has a radius of about 10⁻²⁷ meter.
Source: wiktionary
Keep exploring
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.